X Lei, F Ren, J Zhang, J Niu, Y Zhang, Y Ci… - Optical and Quantum …, 2022 - Springer
In this paper, a novel design of weakly-coupled few-mode photonic crystal fiber (FM-PCF)
supporting 6 vector modes (HE11a, HE11b, TM01, HE21a, HE21b, TE01) with ultra-flattened …